Elevator-bucket.



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f AJ. r. WHITE.

. BLBv'AToR BUCKET'. APPLIATIOH FILI'D FEB. 2B, 1903.

N0 MODEL.

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c. UNITED 'STATES' I Patented October 6, 19o-.

PATENT OFFICE.

JOHN F. WHITE, OF BLOOMINGTON, ILLINOIS, ASSIGNOR TO UQ S. PORTABLE FLFVATOR co., OF BLOOMIN'GTON,

JERSEY.

ILLINOIS, A CORPORATION OF New 'ELEvAToR-BUCKET.

SPECIFICATION forming part of Lettersv Fatent No. 740,499, dated october e, 1903.

` Application iiled February 28, 1903; Serial No. 145,584. (No model.)

.To all wit/'mrt it may concern.-

Beit known that I, JOHN F. WHITE, a citizen of the United States, residing at Bloomington, in the county of. McLean and State of Illinois, have invented Ya new and useful Elevater-B ucket,of which the following is a specification. Y

The invention relates to improvements in buckets for elevators.

The object of the present .invention is to improve the construction of buckets fo'r elevators and to provide a simple and comparatively inexpensive'one of great strength and durability adaptedl to be run at a high rate of I5' ble of unfcldingas it passes around the wheelsv or gears at the ends of the elevator-frame, whereby it is adapted to cut its way through the material in the boot or bottom of the elevator to avoid clogging or interfering with the rapid operation of the elevatorV and also to discharge its contents completely at the top of the elevator to prevent any of the grain-0r other material from being carried backward, as oftenvresults from operating the elevator at a high rate of speed when buckets ofthe ordinary construction are employed.

The invention also has for its object to provide an elevator bucket of this character which will also be adaptedfor operatingfeffectively in large elevators for handling earcorn and similar materialand which wilt enable gear-wheels of asmaller'diameter than those usually employed to be used.

' f With these and other objects in view the invention consists in the novel construction and arrangement of parts hereinafter fully described,ill ustrated in the accompanying drawings,and particularly pointed out in the claims hereto appended, it being understood that changes in the form, proportion, and minor.

details of construction within vthe scope of the claims Vmay be made without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure l is a vertical sectional view of an elevator constructed in accordance with this invention. Fig. 2 is a de- Ytail perspective view of one of the buckets.-

Fig. 3 is a similar view of one end of a bucket, illustrating the manner of securing the same to a chain.l of the same.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

l and 2 designate bars or sections of a bucket for elevators, and the said sections are secured Vto links 3 and 4 of endless sprocket-chains.

The bars or sections, which are normally arranged atl right angles to each other to form a bucket, are adapted to conform to the movement of the links and are unfolded or opened,

when the links are arranged at an angle to each other in passing around the sprocketwheels 5 and 6 at the top and bottom ot' the frame 7 of the elevator. The link tis pro- -vided at its inner side with a laterally-disposed ear 8, which is riveted to the rear face of the bar or member l, asclearly illustrated in Fig. 3 of the accompanying drawings. The other link 4 is provided with a bracket 9, consisting of a lug or iiange 1GV 'and supporting webs or flanges l1, formed integral with the link and with the lug or iiange 10, which is riveted to the bar or member 2, as clearly shown in Fig. 4 of the drawings. The ear 8 and the lug or flange of the bracket of the other link tit fiat against the bars or members,

Fig. et is a detail sectional View breaking the chains.

The bars or members are constructed of heavy sheet-steel or similar material, and their terminals may be bent at right angles to form overlapping ends 12 and 13 for closing the ends of the bucket; but these end portions 12 and 13 may be omitted, if desired. The bar or member 1, which is arranged fiat against the adjacent links, as shown in Fig. 2, when such links are in alinement, is provided at its ends with suitable openings 14 to receive the teeth of the sprocket-wheels when the bucket is passing around the same.

The bars or members are arranged at an obtuse angle to each other when the bucket is passing through the bottom o r boot 15 of the elevator, and the said bucket is thereby adapted to cut its way through the material, and the outwardly-extending bar or member 2 offers less resistance to the'movement of .operated as rapidly as desired without liability of the material being carried back by the buckets, as is often the case wheneleva-l tors having the ordinary form of bucket are rapidly operated. Also by this unfolding of the bucket andthe rapid discharge of its contents small wheels of about six inches diameter will operate effectively where the ordinary bucket requires wheels from two to three feet It has been found by experifV ence that the greatest capacity of the bucket is secured by arranging the elevator at aboutV in diameter.

an angle of forty-five degrees.

It will be seen that by mounting the members on separate links they are hingedlyconnected and twice the number of fastening devices may be effectively employed than can be used with the ordinary bucket or scraper and that the strength and durability of the bucket are greatly increased and that the elevator may be operated at a high rate of speed without liability of tearing off the buckets or Also it will be apparent that the bucket, while being especially adapted for handling small grain which an ordinary scraper will not carry, is also capable of operating effectively and advantageously on large material, such as ear-corn. Furthermore, it will be understood that the hinged members of the bucket automatically ope'n or increase the angle between them while passing around the ends of the elevator to enable the bucket to cutits way through the material in the boot and to provide a clearance-space therein and also to discharge the material at the top of the elevator.

What is claimed is- 1. An elevator provided with a bucket com posed of two members arranged at an angle to each other when closed, and means for automatically increasing the angle between the members and thereby opening the bucket at each end of the elevator, substantially as described.

2. An elevator provided with a bucket composed of two members arranged at an angle to each other when closed and also bingedly mounted on a common axis, and means for automatically opening the bucket when the same passes around each end of the elevator, substantially as described.

3. An elevator having chains and sprocketwheels, and provided with a bucket composed of sections or members arranged at an angle to each other and mounted on separate links, whereby the bucket will be opened when the same passes around the ends of the elevator, substantially as described.

4. An elevator having sprocket-gearing and provided with a bucket composed of two members arranged at an angle to each other and mounted on separate links and adapted to swing apart to open the bucket when the same passes around the ends of the elevator, said members having ends arranged to slide on each other, substantially as described.

5. In an elevator, the combination with two links of a sprocket-chain, one of the links being provided with a laterally-extending ear and the other having an outwardly-projecting liange, of a bucket composed of two members secured respectively to the ear and the ange, whereby the bucket is adapted to open ICO when it passes around the ends of the elevator, substantially as described.

6. The combination with two links of a sprocket-chain, one of the links being provided With a laterally-extending ear and the other having an outwardly-projecting flange, of a bucket com posed of two members secured respectively to the ear and the ange and extending over the links, the member attached to the ear being provided with an opening corresponding to the opening of the adjacent link, substantially as described.

7. In an elevator, the combination with two links of a sprocket-chain', of a bucket composed of two members mounted on separate links and having their terminals bent at an angle and overlapped and slidable on each other, and means for automatically opening the bucket at each end of the elevator, substantially as described.

8. An elevator provided with a bucket composed of two members normally arranged at approximately right angles toeach other, said elevator being provided with means for automatically increasing the angle formed by the members to an obtuse angle as the bucket passes around each end of the elevator, substantially as described.

9. An elevatorcomprisingachain, a bucket IIO IZO

composed of two members mounted on oonmyown I have hereto affixed my signature in tiguous links of the chain and both swinging bhe presence of two witnesses. from the same axis, and means for automat icaily opening the bucket when the Lsame* 5 passes around each end of the elevator, sub- Winesses: Y

stantially as described. o MABEL DAVISON, In testimony that I claim the foregoing as l EARL Gr. IRVIN.

JOHN F. WHITE. 

